Man, more people should read Schumpeter. Capitalism is really good for rapid growth. The second the profit motive negatively affects the quality of the product or efficiency of its production a company should be nationalized to prevent the profit motive from destroying part of our economy (the actually-useful part, that is, not investors or shareholders or dividends).
My point is that capitalism, as a system, has to adapt to survive, either its own demise through rapid/unlimited growth (like cancer), either through its replacement by something else (public service or some other structure).